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From Mike Walch <mwa...@apache.org>
Subject Re: ERROR: Problem initializing the class loader
Date Fri, 23 Nov 2018 03:22:02 GMT
Hi Alex,

It looks like you are running Accumulo 1.x. You need the property
general.classpaths set in your accumulo-site.xml file. Release tarballs
have this set in conf/accumulo-site.xml if you need an example.

-Mike

On Thu, Nov 22, 2018 at 4:48 PM Alex Ruiz E. <ruiz.euler@gmail.com> wrote:

>
> I'm getting "ERROR: Problem initializing the class loader" when trying to
> run accumulo for the first time. I have set the following on
> accumulo-env.sh:
>
> if [[ -z $HADOOP_HOME ]] ; then
>    test -z "$HADOOP_PREFIX"      && export
> HADOOP_PREFIX=/home/user/Aplicaciones/hadoop-3.1.1 #/path/to/hadoop
> else
>    HADOOP_PREFIX="$HADOOP_HOME"
>    unset HADOOP_HOME
> fi
>
> # hadoop-2.0:
> test -z "$HADOOP_CONF_DIR"       && export
> HADOOP_CONF_DIR="$HADOOP_PREFIX/etc/hadoop"
>
> test -z "$JAVA_HOME"             && export JAVA_HOME=/usr/lib/jvm/default
> #/path/to/java
> test -z "$ZOOKEEPER_HOME"        && export
> ZOOKEEPER_HOME=/home/user/Aplicaciones/zookeeper-3.4.12 #/path/to/zookeeper
> test -z "$ACCUMULO_LOG_DIR"      && export
> ACCUMULO_LOG_DIR=$ACCUMULO_HOME/logs
> if [[ -f ${ACCUMULO_CONF_DIR}/accumulo.policy ]]
> then
>    POLICY="-Djava.security.manager
> -Djava.security.policy=${ACCUMULO_CONF_DIR}/accumulo.policy"
> fi
> test -z "$ACCUMULO_TSERVER_OPTS" && export
> ACCUMULO_TSERVER_OPTS="${POLICY} -Xmx256m -Xms256m "
> test -z "$ACCUMULO_MASTER_OPTS"  && export ACCUMULO_MASTER_OPTS="${POLICY}
> -Xmx256m -Xms256m"
> test -z "$ACCUMULO_MONITOR_OPTS" && export
> ACCUMULO_MONITOR_OPTS="${POLICY} -Xmx128m -Xms64m"
> test -z "$ACCUMULO_GC_OPTS"      && export ACCUMULO_GC_OPTS="-Xmx128m
> -Xms128m"
> test -z "$ACCUMULO_SHELL_OPTS"   && export ACCUMULO_SHELL_OPTS="-Xmx256m
> -Xms64m"
> test -z "$ACCUMULO_GENERAL_OPTS" && export
> ACCUMULO_GENERAL_OPTS="-XX:+UseConcMarkSweepGC
> -XX:CMSInitiatingOccupancyFraction=75 -Djava.net.preferIPv4Stack=true
> -XX:+CMSClassUnloadingEnabled"
> test -z "$ACCUMULO_OTHER_OPTS"   && export ACCUMULO_OTHER_OPTS="-Xmx256m
> -Xms64m"
> test -z "${ACCUMULO_PID_DIR}"    && export
> ACCUMULO_PID_DIR="${ACCUMULO_HOME}/run"
>
>
>
> My accumulo-site.xml (detail):
>
> <configuration>
>   <!-- Put your site-specific accumulo configurations here. The available
> configuration values along with their defaults are documented in
> docs/config.html Unless
>     you are simply testing at your workstation, you will most definitely
> need to change the three entries below. -->
>
>   <property>
>     <name>instance.volumes</name>
>     <value>hdfs://localhost:9000/accumulo</value>
>     <description>comma separated list of URIs for volumes. example:
> hdfs://localhost:9000/accumulo</description>
>   </property>
>
>   <property>
>     <name>instance.zookeeper.host</name>
>     <value>localhost:2181</value>
>     <description>comma separated list of zookeeper servers</description>
>   </property>
>
>
> I have successfully launched a hadoop hdfs and a zookeeper instance, but
> accumulo just can't find the classes it needs, any ideas please?
>
> Thanks,
>

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